CBHS has had a ton of All Blacks come through the school, 42 iirc. Most notable Andrew Mehrtens and Dan Carter. They also produced the Hadlee boys, Chris Cairns, Chris Martin and Corey Anderson. Easily the best sporting alumni of any school in NZ.

Joeys has a pretty awesome record for producing rugby players. The GPS system has rarely produced top quality cricketers though. Probably because they don't let the kids play club cricket on a Saturday, and as a result they get pretty cloistered.

From a League POV, St Pats at Fairfield have produced some guns - Sterlo, Greg Alexander among them iirc. St Greg's Campbelltown have also produced a good number of rep league players.

Nudgee College in Brisbane has produced some top sportsmen as well.

WWCC - Loyaulte Mi Lie

"Hope is the fuel of progress and fear is the prison in which you put yourself" - Tony Benn